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Namespace Prefix:	rok_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Maximum Vesting age of participant for company contribution and/ or investment earning in Company Matching Contributions, Fixed Rate Contributions, Discretionary Profit-Sharing Contributions, Qualified Non-Elective Contributions, and Disability Contributions.

No definition available.

Name:	rok_EBPEmployerContributionMaximumVestingAge
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Period Type:	duration

Company contribution and/ or investment earning percentage vesting to the participant in Company Matching Contributions, Fixed Rate Contributions, Discretionary Profit-Sharing Contributions, Qualified Non-Elective Contributions, and Disability Contributions, upon completion of minimum service period or attainment of maximum vesting age

No definition available.

Name:	rok_EBPEmployerContributionVestingPercentage
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Minimum Vesting service period for company contribution and/ or investment earning to the participant in Company Matching Contributions, Fixed Rate Contributions, Discretionary Profit-Sharing Contributions, Qualified Non-Elective Contributions, and Disability Contributions.

No definition available.

Name:	rok_EBPEmployerContributionVestingServicePeriod
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Data Type:	xbrli:durationItemType
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EBP, Investment Contribution, Minimum Increment, Percent

No definition available.

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Namespace Prefix:	rok_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

EBP, Maximum Number Of Loans Outstanding

No definition available.

Name:	rok_EBPMaximumNumberOfLoansOutstanding
Namespace Prefix:	rok_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

EBP, Note Receivable From Participant Account Borrowing, Term Five

No definition available.

Name:	rok_EBPNoteReceivableFromParticipantAccountBorrowingTermFive
Namespace Prefix:	rok_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

EBP, Note Receivable From Participant Account Borrowing, Term Four

No definition available.

Name:	rok_EBPNoteReceivableFromParticipantAccountBorrowingTermFour
Namespace Prefix:	rok_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

EBP, Note Receivable From Participant Account Borrowing, Term One

No definition available.

Name:	rok_EBPNoteReceivableFromParticipantAccountBorrowingTermOne
Namespace Prefix:	rok_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

EBP, Note Receivable From Participant Account Borrowing, Term Seven

No definition available.

Name:	rok_EBPNoteReceivableFromParticipantAccountBorrowingTermSeven
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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

EBP, Note Receivable From Participant Account Borrowing, Term Six

No definition available.

Name:	rok_EBPNoteReceivableFromParticipantAccountBorrowingTermSix
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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

EBP, Note Receivable From Participant Account Borrowing, Term Three

No definition available.

Name:	rok_EBPNoteReceivableFromParticipantAccountBorrowingTermThree
Namespace Prefix:	rok_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

EBP, Note Receivable From Participant Account Borrowing, Term Two

No definition available.

Name:	rok_EBPNoteReceivableFromParticipantAccountBorrowingTermTwo
Namespace Prefix:	rok_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

EBP, Participant Contribution, Pretax, Maximum Annual Compensation to Total Compensation, Highly Compensated Participants, Percentage

No definition available.

Name:	rok_EBPParticipantContributionPretaxMaximumAnnualCompensationToTotalCompensationHighlyCompensatedParticipantsPercentage
Namespace Prefix:	rok_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

EBP, Participant Loan, Basis Spread On Variable Rate

No definition available.

Name:	rok_EBPParticipantLoanBasisSpreadOnVariableRate
Namespace Prefix:	rok_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

EBP, Requisite Service Period

No definition available.

Name:	rok_EBPRequisiteServicePeriod
Namespace Prefix:	rok_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Amount of net asset available for benefit transferred to (from) employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) from (to) external plan.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 962
-SubTopic 325
-Name Accounting Standards Codification
-Section 55
-Paragraph 17
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478873/962-325-55-17

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6A-05(a)(Schedule III))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477804/962-205-S99-1

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478416/962-205-50-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section 45
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477063/962-205-45-8

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Namespace Prefix:	us-gaap-ebp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478416/962-205-50-1

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Percentage of employer matching contribution on eligible participant contribution to employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

Name:	us-gaap-ebp_EmployeeBenefitPlanEmployerContributionMatchingPercentage
Namespace Prefix:	us-gaap-ebp_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Percentage of participant compensation eligible for employer matching contribution for participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

Name:	us-gaap-ebp_EmployeeBenefitPlanEmployerContributionParticipantCompensationMatchedPercentage
Namespace Prefix:	us-gaap-ebp_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Amount of plan asset, in forfeited nonvested account, no longer allocated to participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

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Namespace Prefix:	us-gaap-ebp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Amount of decrease in forfeited nonvested account of employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) from employer contribution.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 962
-SubTopic 325
-Name Accounting Standards Codification
-Section 55
-Paragraph 17
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478873/962-325-55-17

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (j)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478416/962-205-50-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6A-04(5)(c))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477804/962-205-S99-1

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Namespace Prefix:	us-gaap-ebp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Amount of maximum account balance that participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) can borrow.

Name:	us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMaximumBorrowingAmount
Namespace Prefix:	us-gaap-ebp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Percentage of maximum account balance that participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) can borrow to total participant account balance.

Name:	us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMaximumBorrowingToTotalAccountPercentage
Namespace Prefix:	us-gaap-ebp_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

Amount of minimum account balance that participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) can borrow.

Name:	us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMinimumBorrowingAmount
Namespace Prefix:	us-gaap-ebp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Percentage of eligible compensation contributed for participant automatically enrolled in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

Name:	us-gaap-ebp_EmployeeBenefitPlanParticipantContributionAutomaticDeferralRate
Namespace Prefix:	us-gaap-ebp_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Percentage of maximum pretax annual compensation that participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)), is permitted to contribute to total pretax annual compensation.

Name:	us-gaap-ebp_EmployeeBenefitPlanParticipantContributionPretaxMaximumAnnualCompensationToTotalCompensationPercentage
Namespace Prefix:	us-gaap-ebp_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Name:	dei_LegalEntityAxis=rok_EBP008Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	rok_EBPEmployerContributionTypeAxis=rok_EBPFixedRateContributionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
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